Organic light emitting diode display device

Abstract

An organic light emitting diode display device includes: a substrate including first to fourth subpixels each having an emission area and a non-emission area adjacent to the emission area; first to fourth light emitting diodes in the first to fourth subpixels, respectively, on the substrate; and a transmittance adjusting layer receiving a light emitted from the first to fourth light emitting diodes along a first direction and including a gray dye.

The invention claimed is: 
     
       1. An organic light emitting diode display device, comprising:
 a substrate including first, second, third, and fourth subpixels each having an emission area and a non-emission area, the non-emission areas disposed between the emission areas of adjacent two of the first, second, third and fourth subpixels; 
 first, second, third, and fourth light emitting diodes in the first, second, third, and fourth subpixels, respectively, on the substrate; and 
 a transmittance adjusting layer receiving a light emitted from the first, second, third, and fourth light emitting diodes and including a gray dye, 
 wherein the first subpixel includes a white subpixel, 
 wherein the transmittance adjusting layer includes a gray pattern including the gray dye and a transparent pattern, 
 wherein, in a cross-sectional view, a first portion of the gray pattern overlaps the first light emitting diode in a direction perpendicular to the substrate and has a first transmittance, and a second portion of the gray pattern overlaps each of the second, third and fourth light emitting diodes in the direction perpendicular to the substrate and has a second transmittance higher than the first transmittance, 
 wherein, in the cross-sectional view, the transparent pattern overlaps each of the second, third and fourth light emitting diodes in the direction perpendicular to the substrate, and does not overlap the first light emitting diode in the direction perpendicular to the substrate, and 
 wherein, a color filter pattern is disposed between the transmittance adjusting layer and each of the first, second, third and fourth light emitting diodes. 
 
     
     
       2. The organic light emitting diode display device of  claim 1 , wherein the first portion of the gray pattern having the first transmittance has a first thickness and the second portion of the gray pattern having the second transmittance has a second thickness smaller than the first thickness. 
     
     
       3. The organic light emitting diode display device of  claim 2 , wherein the second portion of the gray pattern having the second transmittance overlaps the transparent pattern. 
     
     
       4. The organic light emitting diode display device of  claim 2 , wherein a third portion of the gray pattern corresponding to the non-emission areas between the emission areas of adjacent subpixels of the second, third and fourth subpixels has the second thickness. 
     
     
       5. The organic light emitting diode display device of  claim 3 , wherein an encapsulating substrate is disposed between the first, second, third, and fourth light emitting diodes and the transmittance adjusting layer, and wherein the encapsulating substrate has a same refractive index as the transparent pattern. 
     
     
       6. The organic light emitting diode display device of  claim 3 , wherein the transparent pattern is a monolithic single pattern and is between the second portion of the gray pattern and each of the second, third and fourth light emitting diodes. 
     
     
       7. The organic light emitting diode display device of  claim 1 , wherein the light emitted from the first, second, third, and fourth light emitting diodes has a white color, and wherein the color filter pattern comprises a red color filter pattern disposed between the transmittance adjusting layer and the second light emitting diode in the emission area of the second subpixel, a green color filter pattern disposed between the transmittance adjusting layer and the third light emitting diode in the emission area of the third subpixel, and a blue color filter pattern disposed between the transmittance adjusting layer and the fourth light emitting diode in the emission area of the fourth subpixel. 
     
     
       8. The organic light emitting diode display device of  claim 7 , wherein the color filter pattern further comprises a white color filter pattern disposed between the transmittance adjusting layer and the first light emitting diode in the emission area of the first subpixel. 
     
     
       9. The organic light emitting diode display device of  claim 8 , wherein the transparent pattern is disposed between each of the white, red, green and blue color filter patterns and the gray pattern. 
     
     
       10. The organic light emitting diode display device of  claim 1 , wherein the first, second, third, and fourth light emitting diodes are disposed on a first surface of the substrate, and the transmittance adjusting layer is disposed on a second surface of the substrate.